Reputation: 778
I have a NetBeans maven-based project that I want to switch from Java 1.8 to 12 but I can't compile it.
After many attempts, I have decided to start from the beginning, and create a very simple project to understand how to do this change.
Well, I have tried and I can't compile the simple project either.
Could someone explain what I am doing wrong?
Preamble
NetBeans: 10.0
JAVA_HOME: C:\Program Files\Java\jdk-12 (I have tried also 9, 10, 11)
Project creation
This is the autogenerated POM with and the javax.annotation-api Dependency
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>it.prj</groupId>
<artifactId>Project-parent</artifactId>
<version>2.9</version>
</parent>
<artifactId>Project-source</artifactId>
<packaging>nbm</packaging>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>nbm-maven-plugin</artifactId>
<extensions>true</extensions>
<configuration>
<useOSGiDependencies>true</useOSGiDependencies>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<useDefaultManifestFile>true</useDefaultManifestFile>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.netbeans.api</groupId>
<artifactId>org-netbeans-api-annotations-common</artifactId>
<version>${netbeans.version}</version>
</dependency>
<dependency>
<groupId>org.netbeans.api</groupId>
<artifactId>org-openide-windows</artifactId>
<version>${netbeans.version}</version>
</dependency>
<dependency>
<groupId>org.netbeans.api</groupId>
<artifactId>org-openide-util</artifactId>
<version>${netbeans.version}</version>
</dependency>
<dependency>
<groupId>org.netbeans.api</groupId>
<artifactId>org-openide-util-ui</artifactId>
<version>${netbeans.version}</version>
</dependency>
<dependency>
<groupId>org.netbeans.api</groupId>
<artifactId>org-openide-util-lookup</artifactId>
<version>${netbeans.version}</version>
</dependency>
<dependency>
<groupId>org.netbeans.api</groupId>
<artifactId>org-openide-awt</artifactId>
<version>${netbeans.version}</version>
</dependency>
<dependency>
<groupId>org.netbeans.api</groupId>
<artifactId>org-netbeans-modules-settings</artifactId>
<version>${netbeans.version}</version>
</dependency>
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>javax.annotation-api</artifactId>
<version>1.3.2</version>
<type>jar</type>
</dependency>
</dependencies>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
Then I start the Clean & Build > SUCCESS
I changed the Java version from 1.7 to 12
This add the related Plugin to the POM
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>12</source>
<target>12</target>
</configuration>
</plugin>
Update the version field, so it becomes:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<source>12</source>
<target>12</target>
</configuration>
</plugin>
Then I restart the Clean & Build > FAILED
cd D:\Project\Project-source; "JAVA_HOME=C:\\Program Files\\Java\\jdk-12" "M2_HOME=C:\\Program Files\\apache-maven-3.6.0" cmd /c "\"\"C:\\Program Files\\apache-maven-3.6.0\\bin\\mvn.cmd\" -Dmaven.ext.class.path=\"C:\\Program Files\\Netbeans 10.0\\java\\maven-nblib\\netbeans-eventspy.jar\" -Dfile.encoding=UTF-8 clean install\""
Building Project-source 2.9
--- maven-clean-plugin:2.5:clean (default-clean) @ Project-source ---
Deleting D:\Project\Project-source\target
--- maven-resources-plugin:3.1.0:resources (default-resources) @ Project-source ---
Using 'UTF-8' encoding to copy filtered resources.
Copying 1 resource
--- maven-compiler-plugin:3.8.0:compile (default-compile) @ Project-source ---
Changes detected - recompiling the module!
Compiling 1 source file to D:\Project\Project-source\target\classes
--- nbm-maven-plugin:4.1:manifest (default-manifest) @ Project-source ---
NBM Plugin generates manifest
Adding OSGi bundle dependency - javax.annotation:javax.annotation-api
------------------------------------------------------------------------
BUILD FAILURE
------------------------------------------------------------------------
Failed to execute goal org.codehaus.mojo:nbm-maven-plugin:4.1:manifest (default-manifest) on project Project-source:
Execution default-manifest of goal org.codehaus.mojo:nbm-maven-plugin:4.1:manifest failed.: IllegalArgumentException
EDIT
Upvotes: 2
Views: 1653
Reputation: 196
Please use the 4.2 version like this:
<groupId>org.apache.netbeans.utilities</groupId>
<artifactId>nbm-maven-plugin</artifactId>
<version>4.2</version>
replacing any references to:
<groupId>org.codehaus.mojo</groupId>
<artifactId>nbm-maven-plugin</artifactId>
jar file generated by jdk>8 cannot be parsed by older version of the plugin.
Upvotes: 4
Reputation: 44942
In your example nbm-maven-plugin
fails but the compilation process is fine.
Temporarily remove nbm-maven-plugin
from your build and see if Maven can build without it. Perhaps you can skip this plugin altogether as it seems specific only to NetBeans IDE.
Upvotes: 2